To further analyze the relative performance among the comparing dataless methods, we adopt the Nemenyi test [1]}, where our Wsptm is deemed as the control method. For each evaluation metric, we independently rank all comparing methods over totally 40 evaluation results, and compare the average ranks of pairwise comparing methods. Specifically, the performance between two methods will be considered significantly different if the corresponding average ranks differ by at least the critical difference (CD), formulated as follows [1]}:
\(CD = q_a\sqrt{\frac{l(l+1)}{6n}},\) 
